Well, you can read it here. Most of the blog entry is in a joking manner if you read through it . Stuff like "how bout just washing the one square out.". "Use one square" is just a set up line. "Wash it out" is the punchline. Not the funniest joke ever, but it's structured as a joke in its original context.

And then read on about "I have designed a clothing line that has what's called a "dining sleeve." The sleeve is detachable and can be replaced with another "dining sleeve," after usage. The design will offer the "diner" the convenience of wiping his mouth on his sleeve rather than throwing out yet another barely used paper product." and telling people not to steal her idea (if she really had a great idea, would she share it to everyone?). It is all obviously an attempt to be witty.